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  Subject Started by Replies Views Last post
125kHz Noise finding AE8RS 3 1935 Last post January 03, 2019, 05:40:48 PM
by NC5P
Modulating 3-30Hz VE3VTT 4 2204 Last post March 31, 2019, 02:54:57 PM
by KD0REQ
magnetic disturbance before earthquakes KC6RWI 4 2208 Last post May 15, 2019, 03:27:58 PM
by K0UA
ARTICLE: K9LA - Propagation on 630-Meters and 2200-Meters WA2ONH 2 2513 Last post February 24, 2019, 05:05:13 AM
by VE1YY
President Lincoln III+ on ten meters K2PHD 3 2530 Last post August 17, 2019, 10:42:41 AM
by K0OD
IC706 on 630m band using four turn magnetic loop antenna G0OQX 10 2545 Last post December 02, 2018, 08:26:00 AM
by W9IQ
SLAC develops novel compact VLF antenna for communicating where radios fail N8FNR 13 2563 Last post September 06, 2019, 06:40:33 AM
by G8HQP
Litz Coils K6STI 6 2807 Last post February 21, 2020, 04:10:19 PM
by K6STI
Best time, freq to receive any 630/2200m stations N4AEQ 8 2862 Last post March 11, 2019, 03:54:04 AM
by NO3M
Icom 718 on 630 meters? « 1 2 » N0DZQ 15 3438 Last post March 11, 2022, 07:51:48 PM
by VK6HP
New 2200 and 630 Meter ham band W5KUB 0 3517 Last post September 24, 2017, 02:08:59 PM
by W5KUB
VLF converter KA4NMA 0 3523 Last post September 18, 2017, 05:51:51 AM
by KA4NMA
FM works well on 160m VK3YE 7 3629 Last post January 31, 2019, 12:38:43 PM
by WB5WPA
Summary of three (equipment) methods of transmitting on 630m AE5X 0 4267 Last post November 24, 2017, 09:36:21 AM
by AE5X
Monitor Sensors TVTR1 630-Meter Transverter review in the July 2018 QST N8FNR 4 4411 Last post June 13, 2018, 12:22:26 PM
by AE5X
Receiving 630m on a transmit antenna AE5X 3 4681 Last post November 03, 2017, 08:15:42 AM
by AA2UK
HF Time Signal Intruder KA2FIR 1 5675 Last post June 21, 2018, 11:35:36 AM
by KA2FIR
Working WAS on 630? K0OD 4 5814 Last post February 14, 2018, 04:14:56 AM
by AA2UK
Anyone Know About JTDX on Longwave? K0OD 1 6056 Last post April 06, 2018, 04:49:22 PM
by VA3VF
Power WD6GLA 12 6188 Last post November 04, 2017, 06:26:38 AM
by KM1H
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